महाभारतः mahābhārataḥ - book-8, chapter-36, verse-36

शूरास्तु समरे राजन्भयं त्यक्त्वा सुदुस्त्यजम् ।
योधव्रतसमाख्याताश्चक्रुः कर्माण्यभीतवत् ॥३६॥

36. śūrāstu samare rājanbhayaṁ tyaktvā sudustyajam ,
yodhavratasamākhyātāścakruḥ karmāṇyabhītavat.

36. śūrāḥ tu samare rājan bhayam tyaktvā sudustyajam
yodhavratasamākhyātāḥ cakruḥ karmāṇi abhītavat

36. rājan śūrāḥ tu samare sudustyajam bhayam tyaktvā
yodhavratasamākhyātāḥ abhītavat karmāṇi cakruḥ

36. O King, the brave warriors, having abandoned the fear that is so very difficult to overcome, and known for their adherence to the warrior's code, performed their deeds (karma) fearlessly.

Words meanings summery:

• शूराः (śūrāḥ) - heroes, brave men, warriors

• तु (tu) - but, indeed, yet, on the other hand

• समरे (samare) - in battle, in conflict

• राजन् (rājan) - O king

• भयम् (bhayam) - fear, dread

• त्यक्त्वा (tyaktvā) - having abandoned, having given up

• सुदुस्त्यजम् (sudustyajam) - very difficult to abandon, very hard to give up

• योधव्रतसमाख्याताः (yodhavratasamākhyātāḥ) - known by the warrior's vow, described by the warrior's code

• चक्रुः (cakruḥ) - they did, they performed, they made

• कर्माणि (karmāṇi) - deeds, actions, duties

• अभीतवत् (abhītavat) - fearlessly, like one unafraid

Words meanings and morphology

शूराः (śūrāḥ) - heroes, brave men, warriors

(noun)

Nominative, masculine, plural of śūra

śūra - brave, valiant, hero, warrior

तु (tu) - but, indeed, yet, on the other hand

(indeclinable)

समरे (samare) - in battle, in conflict

(noun)

Locative, masculine, singular of samara

samara - battle, war, conflict

राजन् (rājan) - O king

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler

भयम् (bhayam) - fear, dread

(noun)

Accusative, neuter, singular of bhaya

bhaya - fear, dread, apprehension

त्यक्त्वा (tyaktvā) - having abandoned, having given up

(indeclinable)

absolutive

formed from root √tyaj with suffix -ktvā

Root: tyaj (class 1)

सुदुस्त्यजम् (sudustyajam) - very difficult to abandon, very hard to give up

(adjective)

Accusative, neuter, singular of sudustyaja

sudustyaja - very difficult to abandon/give up

Compound type : karmadhāraya (su+dus+tyaja)

• su – good, well, very, excellent
  indeclinable
• dus – bad, difficult, ill
  indeclinable
• tyaja – to be abandoned, to be given up
  adjective
  gerundive
  derived from √tyaj with suffix -ya (or -anīya, -tavya)
  Root: tyaj (class 1)

Note: Qualifies 'bhayam'.

योधव्रतसमाख्याताः (yodhavratasamākhyātāḥ) - known by the warrior's vow, described by the warrior's code

(adjective)

Nominative, masculine, plural of yodhavratasamākhyāta

yodhavratasamākhyāta - described by/known for the warrior's vow

Past Passive Participle

Compound of yodhavrata and samākhyāta (PPP of sam-ā-khyā)

Compound type : bahuvrīhi (yodhavrata+samākhyāta)

• yodhavrata – warrior's vow/code
  noun (neuter)
• samākhyāta – well-known, proclaimed, described
  adjective
  Past Passive Participle
  formed from root √khyā with upasargas sam and ā, and suffix -ta
  Prefixes: sam+ā
  Root: khyā (class 2)

Note: Qualifies 'śūrāḥ'.

चक्रुः (cakruḥ) - they did, they performed, they made

(verb)

3rd person , plural, active, perfect (lit) of kṛ

perfect tense

Root verb kṛ, perfect third person plural

Root: kṛ (class 8)

कर्माणि (karmāṇi) - deeds, actions, duties

(noun)

Accusative, neuter, plural of karma

karma - action, deed, work, ritual action

Root: kṛ (class 8)

Note: Object of 'cakruḥ'.

अभीतवत् (abhītavat) - fearlessly, like one unafraid

(indeclinable)

formed with suffix -vat, meaning 'like' or 'as if'

Compound type : avyayībhāva (a+bhīta)

• a – not, un-, without
  indeclinable
  negative prefix
• bhīta – frightened, afraid
  adjective
  Past Passive Participle
  formed from root √bhī with suffix -ta
  Root: bhī (class 3)

Note: Adverbial use.